firstly..Thanks for the,I answer appreciate that. I was in a hurry while writing the past email
To be slightly clearer. I know that the _changes feed is generated from some bookkeeping mechanism internal to the database. When I said "Calculated for a particular set of entries" I mean the actual javascript view server that is evaluating your map function because the doc(s) have been fed to it and it must response with the emitted results. I ..could have phrased that better. My questions revolve around how CouchDB utilizes the view server...and if there is only one of them running at a given time on a box.The docs suggest that CouchDB talks to a view server with a line bases protocol, but I don't know there can be more than one view server executing map functions at a time...and if so...is that a configurable thing? On Sun, Jul 13, 2014 at 9:33 PM, Jens Alfke <[email protected]> wrote: > I am no expert on the implementation of CouchDB, but I don’t believe your > question makes sense in the form that you asked it. The changes feed isn’t > related to views at all. Rather, there’s an underlying by-sequence index in > the main database that’s scanned to generate that feed. And it doesn’t > “calculate” docs; it just returns existing doc IDs and revision IDs. > > If that’s not what you were actually asking, you’ll need to rephrase your > question more clearly. > > —Jens > > On Jul 13, 2014, at 8:49 PM, Stanley Iriele <[email protected]> wrote: > > > any thoughts on this?...Its not a blocker..I'd just really like to know > > > > > > On Thu, Jul 10, 2014 at 3:44 PM, Stanley Iriele <[email protected]> > > wrote: > > > >> When a doc needs to be calculated for a particular set of entries from > the > >> changes feed...are docs sent one at a time or in batches?... And is > there > >> just one view server doing all of the computation. > >> > >> Lastly...is there a way to configure or control any of the settings that > >> would dictate the above?..like number of view servers.. Or batch size > for > >> docs.... Etc... And if not should there be?.. But I've been very curious > >> about this for a while... I looked a few view server implementations.. > >> But...meh > >> > >
